Water collection (IMAGE) Smithsonian Tropical Research Institute Caption Research by STRI postdoctoral fellow Karina Chavarria shows that bacterial communities in streams adjacent to young secondary forests resemble those of mature forest streams in as little as a decade after cattle has been removed from the land. Credit Kristin Saltonstall, Smithsonian Tropical Research Institute Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.